Device for converting vibrating into rotary motion



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P.,PEA'RTREE. Devioefor Converting Vibrating into Rotary' Motion,

No. 240,536. Patented April 26, 88l.

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. P. PEARTREE. Device for Converting Vibrating into Rotary Motion.

No. 2 4o,536.

Patented April 26, 188|.

FIG. 5.

` INVEN TOR;

WITNESSEE;

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P. PBARTREB. Devioo for Converting Vibrating into Rotary Motion.

No. 240.536. Patented April 26,1881..V

' INVENTOR:

WITNESES:

NJETERS. PNDTO-LITNOGRAPNER. WASHINGTON. D C.

" UNITED STATES PATENT OFFICE.,

PETER PEAR'IREE, OF GOHOES, ASSIGNOR TO WARREN T. KELLOGG, OF

, LANSINGBURG', NEW YORK.

DEVICE FOR CONVERTING VIBRATING INTO ROTARY MOlT|ON.

SPECIFICATION forming part of Letters Patent No. 240,536, dated April 26, 1881.

Application filed July 29, 1879.

To all whom it mag/concern: Be it known that I, PETER PEARTREE, o the city of Gohoes, in the county of Albany and State otl New York, have inventedcertain Improvements in Devices for Converting Vi brating into Rotary Motion, of which the following is a specification, reference being had' to the accompanying drawings, in which- Figure l is a side elevation, Fig. 2 a plan,

1o Fig. 3 a section at the line z z in Figs. l and 4, and Fig. 4 a partial section at the lineyy in Fig. 3, all of a device embodying one form of this invention. Fig. 5 is a side elevation, Fig.

6 a section at the line wat in Figs. 5 and 7, and Fig. 7 a section at the line w w in Fig. 6, of a device which embodies a modification of the same invention. Fig. 8 is a side elevation, Fig. 9 a section at the line n c in Figs. 8 and l0, and Fig. 10 a section at the line u u in Fig. 9, all of a device that embodies another modification of my said invention.

Similar parts are marked by like letters in the'different figures.

This invention consists of certain improved 2 5 devices, hereinafter described and claimed, for communicating rotary motion to a wheel from a vibratin g arm or lever, and is especially suitable for turning aV windlass, rotary pump, ilyI wheel gearing of light machinery,lor a rotary fan or blower, by hand or foot power applied intermittingly to a lever or treadle.

Rotary motion has been heretofore communicated to a Wheel having a lateral annular concentric llange from a vibrating arm or lever pivoted concentrically with that llange, and having in its outer end part a recess with a loose griping-piece, roller, or rollers therein, and contiguous to the inner concave surface of the annular llange, so that while the said arm or lever was `being moved in one direction the said griping-piece, roller7 or rollers would wedge or bind between and against the outerend surface of the arm or lever and the inner surface of the annular flange, and thereby turn the wheel, and so that While the arm or lever was being stopped and turned in the opposite direction the same griping-piece, roller, or rollers would then be released, so as to permit the wheel to continue to revolve or not turn the 5o Wheel backward. In such cases the wedging or binding of the gripiig-piece, roller, or rollers between the outer-end surfaceof the arm or lever and the inner surface of the wheelllange, in turning forward the wheel, exerted an immense outward pressure against i the inner surface ,only of the wheelilange, tending to burst out the latter, and a like inward pressure against the arm or lever, causing great pressure and friction 011 its pivot, tending to break off the latter and to retard the 6o forward turning of the wheel. Also, prior to my invention, rotary motion had been imparted to a wheel having a lateral concentric annular flange from a driving-lever pivoted at or in line with the axis of the wheel, and extended radially far outside of the circle of the annular flange by means of a griping-lever loosely pivoted to the driving-lever at a point far outside of the circle of the. wheel-flange, and extended inward to and past the latter, 7o and movable to and fro in an arc, and endwise on and about its pivot in a plane parallel to the plane of the wheel, and having opposite to the inner and outer surfacesof a short secy tion of the flange two pins or griping-lugs se- 7 5 cured to the griping-lever, either rigidly or so as to be somewhat movable therein in directions transverse to, but not in the circumferential direction of, the wheel-flange, as set forth in United States Patents N os. 86,833 and 99,761, 8o so that such device could gripe and release opposite surfaces of the ilange only by-reason of the vibrating and endwise movements of the whole griping-lever about its pivot on the drivingflever far outside of the circle ,of the ilange, and such outward extensions of the driving and griping levers were, in operation, liable to strike against outside objects, and to materially interfere with the convenient application and use of the device on wheels closely 9o surrounded by m achin ery or stationary casings.`

To cheaply and eifectually overcome the aforesaid'defects is the primary object of this invention.

To that end I provide a wheel, A, having a lateral annular flange, b, and mounted to turn on or with a stud or shaft, C, concentric with said llange, and held by any suitable support, D, and I combine therewith an arm or lever, E, pivoted upon the stud or shaft C, or othertoo wise concentrically with the wheel-fiange b, all in the usual manner; and, in addition, I construct the Outer portion of the arm Or lever E with two lateral lugs, f and g, rigidly fast on that arm or lever, and having therein recesses h and rOpposite to each other and to the inner concave surface, j, and Outer convex surface, 7c, of the iiange b, and I arrange Opposite to each other in the recesses h and t' two loose separate griping-pieces, Z and m, which are either in the form of rollers, as in Fig. 4, or of wedges, as in Fig. 7 or of braces Or toggles, as in Fig. 10, and which are somewhat movable to and fro in the recesses in the direction of the circumference Of the ange of the wheel, so that in turning the arm E in one direction (indicated by the arrow t) the two separate and Opposite griping-pieces, l and m, in the recesses h and t' in the lugs f and g shall then bind between and against those two lugs and the opposite parts of the inner and outer surfaces Of the flange b, substantially as represented in full lines in Figs. 4, 7, and 10, and shall thereby turn the wheel A in the direction pointed by the arrow't, and so that in turning the arm E in the opposite direction the two gri pin g-pieces l and m will then be released in the recesses h and t', as indicated by dotted lines, so as to let the flange b turn freely between them in ythe direction of the arrow t, and not materially tend to turn the wheel in the opposite direction.

In this improved device the outward pressure against the vinner surface of the flange b by the binding of the griping-piece Z'between that flange and the inner lug,f, on the arm E is counteracted by the .simultaneous inward pressure against the Outer surface of the same part of the iiange by the binding of the griping-piece m between that flange and the outer lug, g, on the same arm, and consequently all injurious endwise inward pressure by the arm E against its pivot-support C, and all material excess of outward Or inward pressure against the iiange b by the piece Z or m, is prevented.

To render this device suitable for very con- 4 5 venient use in operating a rotary fan or blower by power applied intermittin gly by hand Icombine with the arm E a connecting-rod, N, and a hand-lever, O, pivoted at o to the support D, and I often prefer to construct the wheel A with a toothed rim, lo, and combine therewith a pinion, Q, fast on a shaft, r, having a flywheel, S, fast thereon, and mounted in the stock D, substantially as shown in the drawings.

What I claim as my invention is l. The combination, with the wheel having the concentric iian ge b and the arm E, pivoted at the axis of the wheel, of two opposite lugs, f and g,fast on said arm, and having recesses h and i, and griping-pieces l and m in the recesses, and somewhat movable therein in the direction ofthecircumference of the flange Ofv the wheel, and arranged to gripe Opposite surv faces Of the same part of the iiange, substantially as described.

2. The combination, with the wheel having the concentric annular flange b and the arm E, pivoted at the axis of the wheel, Of two opposite lugs, f and g, fast O11 said arm,`and having recesses h and fi, griping-pieces l and m inthe recesses, and somewhat movable therein `in the circumferential direction of the flange of the wheel, and arranged to gripe opposite surfaces Of the same portion of the liange, the driving-leverO, and rod N, connecting said arm and lever, all substantially as described.

In testimony whereof I hereunto set my hand, in the presence of two subscribin g witnesses, this 22d day of February, 1879.

PETER PEARTREE.

Witnesses:

ROBERT JOHNSTON, 2d, WILLIAM A. WELLS. 

